Oil Dilution Calc: Dilutoria

GRAMSHIFT

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About this app

Dilutoria is a fast, offline calculator for diluting and blending essential oils. Get the exact number of drops for any carrier oil amount and dilution %, with the real percentage after rounding — no more guessing from charts.

This app is a calculator and reference tool only. It is not a medical device and does not diagnose, treat, cure or prevent any condition. Dilution figures are general guidelines, not a guarantee of safety. Always patch-test and consult a qualified healthcare professional or certified aromatherapist before use.

WHAT IT DOES
• Dilution calculator — carrier oil amount + target % gives whole drops, plus the actual dilution after rounding and the essential-oil volume.
• Check a mix — already blended something? Enter the drops and carrier to see the real %, whether it is over the usual limit, and how to fix it (reduce to N drops, or add carrier oil).
• Real safety limits — phototoxic expressed-citrus oils (bergamot, lime, lemon, grapefruit) and skin-sensitizing oils warn you with per-oil maximums; caps adjust by who it is for (adult, senior, pregnancy, child ages, baby).
• Recipes — roller bottle, spray and diffuser: pick a bottle size and get the drops.
• Blend calculator — set the ratio for each oil and the total drops; get whole-drop amounts that keep your ratio, with safety flags.
• Save and reload your recipes; share them as text.
• Reference tables compiled from published aromatherapy safety literature (R. Tisserand & R. Young, "Essential Oil Safety", 2nd ed.) and public NAHA / IFRA guidance. Dilutoria is an independent app and is not affiliated with, endorsed by or connected to those authors, organisations or brands.
• Weigh instead of counting — weight mode works in % by weight (w/w), the way IFRA/Tisserand limits are written. No density guesswork, and very low limits (0.07%) finally become measurable.

Adjustable drops per mL (15–30), mL / oz / g units, 50 oils, 8 languages, the calculator works offline, no account, no sign-up.

Made for anyone working out a carrier oil dilution ratio, converting drops to mL, or scaling a roller bottle recipe or an aromatherapy blend.

Not medical advice. Consult a professional before use.

What’s new

The essential oil field now says it shows suggested limits, instead of safety limits. The figures are general guidelines, not a guarantee of safety.